What we're trying to get at is buying above-average companies, high return on capital companies but only when they're available at below-average prices.
That is, if you do at least 392 loads of laundry a year, live in one of 18 states where electricity costs are at or above the national average of 7.8 cents a kilowatt-hour and if your opportunity cost--the return you'd get by investing in something other than a more expensive washer--is 6% or less.